Teat-cup for milking-machines.



. PATBNTED JULY 3 l, 1906.

'l No, '82 7-,|1 59.f" 11A. LANE. l

TEAT-CUP PoR MILKING MAGHIN -APPLIOATION 'PI'LBD Nov. V5, 19'o4.-

' To all whom it may concern.-

UNIT'FAD STATES v#PATENT OFFICE. EREDEEIC'A. LANE, or LITTLE'EALLS, NEW YORK, AssiGNoE To D.-

- EUEEELL ,se-COMPANY, oE LITTLE FALLS, NEW YORK.

No. 827,159. i

` Be it known that I, FREDERIC A. LANE, a citizen of the United States, residing yat Little Falls, inthe county of Herkimer and State of New York, have invented a new and useful 4 Improvement in Teat-Cups for'Milking-Ma- IO is provided with an inner flexible wall or linchines, ofl which the yfollowing is a specifica-A tion.

This invention relates to that class of teatcups for milking-machines in which-the cup ing, usually of soft rubber, which is attached at its upper and lower endsto therigid wall ofthe cup and which isfree between its attached end portions to move toward and.

from the axial line of the cup under the vacu- .l um pulsations applied to the milk-tube.-

`The` object of this invention is to reduce a -cup which isl simple, strong, and urable in construction, efficient in operation, and capable of bein readily assembled for use or taken apart for c eaning or repairing.

In the accompanying drawings, Figure 1 is a central vertical. section of a teat-cup pronection with themilk-pipe c, and the u per vvided with my improvements in the i referred A form. Fig. 2-is an elevation oft esame, partly in section. Fig 3 is a detached .fragmentary sectional view of theupper section of the cu lview of t elower section of the cup. Fig. 5

is a fragmentarycentral vertical section of av modified construction of the cup. 'is a horizontal section inline 6 6, Fig. 5.l r I- `ke letters of reference refer tolike parts 'in the several figures. 7

Referring to Figs. 1 'to 4, the rigid wall of the cup is composed of a lower section A and an upper section B, both constructed, preferably, of metal. The lower section A is pro.- vided at its bottom with a nipple a for con# section is rovided at its side with an ob ique nipple b or connection with the air-pipe d.

= This side orifice or nipple and air-pipe are de- 45 machine which produces air pulsations not' signed for use in connection with a milkingonly in the interior space ofthe cup, but also in the inclosed outer space between the rigid wall of the cup andthe flexible lining by alternately exhausting the air from said outer space and admitting the 'air thereto. The

Specification of Letterslatent.

Applicationiled November 5,1904. Serial 1to- 231,486.

Fig. 4 is a similar fragmentary 'l TEAT-c-UP Fon MINING-MACHINES.

y Patented July 31, 1906.'

of milking-machine with which thecup is used may require.

E represents the flexible lining or inner wall of the cup arranged within the upper section B thereof and secured to the upper end of the i section in any suitable manner. The lower end of the lining'is clamped between the two sections of the cup, for which purpose the lower'sectionA is preferably provided at its upper end with a tapering seat f and the upl -per section B near its lower end with a downwardlf-iaring seatg. \The lower section is er or enlargement t, which may be formed by a wirev arranged around the section' and soldered thereto,'as` shown in Figs. 1 and 4,

ori` which may be formed by bending the. metal, as shown in Fig. 5. A screw-threaded nut or union L bears a ainst this shoulder and engages the threade collar hof the upper section, so as to draw. the conicalseats f l which prevent' the flexible lining from bein drawn so tightly' against the inner surface o the cup-when suction is applied to the nipple Z2 that the passage ofthe air to the nipple from the inclosed spacebetween the rigid wall and the flexible lining. would' be interfered with. The lining becomes considerdrawn over the upperpart -of thexsions'of any suitable form or construction A ably stretched by use, sometimes to such an extent thatthe lining hangs loosely in yfront .of the mouth of the nipple b and isdrawn tig-liitly against the 'same by the suction, in w chv case the loose part of the lining acts somewhat like a valvehchoking the nipplel .andpreventingthe suction to befully applied to the inclosed space. Eective projections and depressions for, this purpose are chea ly formedb providing the upper sec-` tion at the level7 of the nipple with circum- Ioo ferential corrugations b, which may for convenience have the. form of a sl iral thread, as

represented in Figs. 1,. 2, an 3, or the projections maybe radial projections or protu'- berances t?, as representedin Figs. 5 and 6,A

or. they may be otherwise constructed, as may be inost convenient. The depressions or spaces between the projecting parts form air-channels, which lead to the nipple and maintain free communication between the latter and the inclosed space, so that the air in the outer chamber can iow freel through these depressions or channels to tlie nipple when suction is applied to the latter.

The upper portion of the lining E, which may be a straight cylindrical piece of rubber tubing, is sprung over anoutwardly-projecting flange m at the upper end of the upper section.

M represents a mouthpiece of soft rubber which is applied to the upper end of the cup ina well-known manner after the lining has been secured to the cu Both ends ofthe lining are securely attached to the upper section of the cup, while the lining is free between the attached ends and can move inwardly, as indicated by dotted lines in Fig. 1, when suction .is applied to the interior of the cup. By disconnecting the two sections of the cup the parts are readily separated. for cleaning, renewing the lining, or other purposes.

.As the exible lining is arranged inthe 'upper portion of the cup it squeezes the teat, whether the latter be long or short, not very far below the base of the teat, where the action upon the teat is most effective. Even if the teat is unusually short there is no dan.- ger that the lining will grasp the teat too near the point, where a s ueezing action would impair or prevent the ow of the milk. As the lining does not extend into the lower portion of the cup, the--lower portion of the lteat hangs free in the cup, so that the milk can freely flow from the teat into the cup and the milk-pipe connected therewith.

' Thecup and lining are preferabl of cylindrical form, but may be made po ygonal in cross-section; if desired.

ln the modified construction represented in Figs. 5 and 6 the lower section A of the vcup is provided at its upper end with a conical seat n, and the upper section B is provided at its lower end with a corres onding conical seat n', between which seats t e lower end ofthe lining is clamped. The two sections of the cup are secured together by means of perforated lugs O O', formed-on or secured to the sections, and screws or bolts vthe Aaround the lower end of the upper section B.

O2, 'connecting these lugs. The lower end of lining may be distended and drawn as represented in Fig. 5.

I claim as my invention- I. A teat-cup comprisiner an upper section having atits lower end a ho low, downwardlyflaring seat, a lower section having at its upper end a corresponding, upwardly-tapering seat which is adapted to be inserted into the upper seat from below, a flexible lining arranged in the upper section and having its lower portion arranged between said seats, and fastening devices whereby the sections are secured together and the lining is clamped between said seats, substantially as set forth.

- 2. A teat-cup comprising two sections, one having a screw-thread and the other a shoulder, a screw-nut surrounding the sections and engaging said screw-thread and shoulder, and a flexible lining clamped between the sections, substantially as set forth.

3. A teat-cup comprislng an upper section having at its lower end a screw-thread, a

.lower section having near its upper end a shoulder, a screw-nut bearing against the shoulder of the lower section and engaging the thread of the upper section, and a exlble lining arranged in the upper section and having its lower portion clamped between the sections, substantially as set forth.

4. A teat-cup comprising an outer rigid shell, a fiexible lining which is secured at itsA upper and lower ends to the shell, a suctionorifice in the shell between the secured ends of the lining, and air-channels which extend FREDERIC A. LANE. Witnesses; G. W. BELLINGER, EDWARD WILHELM.

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